Automotive Mechanics Test #1 with correct
answers
All nnoverhead nnvalve nnengines nn- nncorrect nnanswer-Have nnthe nnvalves nnlocated nnin nnthe nncylinder nnhead
A nnSOHC nnV-8 nnengine nnuses nnhow nnmany nncamshafts? nn- nncorrect nnanswer-Two
Coolant nnflow nnthrough nnthe nnradiator nnis nncontrolled nnby nn- nncorrect nnanswer-Thermostat
A nnnormally nnaspirated nnengine nnloses nnabout nn_____ nnpower nnper nn1,000 nnft. nnof nnelevation nn- nncorrect
nnanswer-3%
The nncamshaft nnis nnturned nnby nnthe nn- nncorrect nnanswer-Crankshaft
One nncylinder nnof nnan nnautomobile nnfour nnstroke nncycle nnengine nncompletes nna nncycle nnevery nn- nncorrect
nnanswer-720 nndeg
How nnmany nnrotations nnof nnthe nncrankshaft nnare nnrequired nnto nncomplete nneach nnstroke nnof nna nn4 nncylinder
nnfour nnstroke nncycle nnengine? nn- nncorrect nnanswer-½
How nnmany nntimes nndoes nnthe nncamshaft nnof nna nnfour-stroke nncycle nnengine nnrotate nnduring nnfour nnrotations
nnof nnthe nncrankshaft? nn- nncorrect nnanswer-2
What nnpart(s) nnof nnthe nnengine nnchanges nnrotary nnmotion nnto nnreciprocating nnmotion nnwhich nnenables nnthe
nnvalves nnto nnbe nnopened? nn- nncorrect nnanswer-The nncamshaft
An nnengine nncamshaft nnis nntimed nnto nnthe nncrankshaft nnso nnthat nnthe nnvalves nnopen nnand nnclose nnin nnrelation
nnto: nn- nncorrect nnanswer-Piston nnposition
, The nnflywheel nnhelps nnto nnkeep nnthe nncrankshaft nnturning nnbetween nn_________ nnstrokes. nn- nncorrect
nnanswer-Power
The nncrankshaft nnof nnan nnengine nnchanges nnreciprocating nnmotion nnto nnrotary nnmotion nn- nncorrect nnanswer-
True
When nnfuel nnexplodes nnin nna nncylinder, nnwhat nnmovable nnpart nnof nnthe nnengine nnfirst nnreceives nnthe nnforce?
nn- nncorrect nnanswer-Piston
How nnmany nnrevolutions nnof nnthe nncrankshaft nnare nnnecessary nnto nncomplete nnthe nnfour-stroke nncycle? nn-
nncorrect nnanswer-2
Which nnof nnthe nnfollowing nnbearings nnsupport nnthe nncrankshaft nnof nnan nnengine? nn- nncorrect nnanswer-Main
Compression nnrings nninstalled nnon nnthe nnpistons nnare nndesigned nnto nn- nncorrect nnanswer-Seal nnthe
nncombustion nnchamber
A nnrotating nnforce nnis nncalled nn- nncorrect nnanswer-Torque
The nnspeed nnof nnthe nnengine nnis nnmeasured nnin nn- nncorrect nnanswer-Revolutions nnper nnminute
What nnpart nnof nnthe nnengine nncloses nnthe nnvalves? nn- nncorrect nnanswer-Valve nnspring
What nnpart nnshould nnbe nnremoved nnto nntest nncylinder nncompression nnon nna nndiesel nnengine? nn- nncorrect
nnanswer-Either nnA nnor nnC nn(injector nn& nnglow nnplug)
What nnis nnused nnto nnignite nnthe nnair-fuel nnmixture nnin nna nndiesel nnengine? nn- nncorrect nnanswer-Heat
Coolant nnis nnwater nnand nn- nncorrect nnanswer-Ethylene nnglycol
answers
All nnoverhead nnvalve nnengines nn- nncorrect nnanswer-Have nnthe nnvalves nnlocated nnin nnthe nncylinder nnhead
A nnSOHC nnV-8 nnengine nnuses nnhow nnmany nncamshafts? nn- nncorrect nnanswer-Two
Coolant nnflow nnthrough nnthe nnradiator nnis nncontrolled nnby nn- nncorrect nnanswer-Thermostat
A nnnormally nnaspirated nnengine nnloses nnabout nn_____ nnpower nnper nn1,000 nnft. nnof nnelevation nn- nncorrect
nnanswer-3%
The nncamshaft nnis nnturned nnby nnthe nn- nncorrect nnanswer-Crankshaft
One nncylinder nnof nnan nnautomobile nnfour nnstroke nncycle nnengine nncompletes nna nncycle nnevery nn- nncorrect
nnanswer-720 nndeg
How nnmany nnrotations nnof nnthe nncrankshaft nnare nnrequired nnto nncomplete nneach nnstroke nnof nna nn4 nncylinder
nnfour nnstroke nncycle nnengine? nn- nncorrect nnanswer-½
How nnmany nntimes nndoes nnthe nncamshaft nnof nna nnfour-stroke nncycle nnengine nnrotate nnduring nnfour nnrotations
nnof nnthe nncrankshaft? nn- nncorrect nnanswer-2
What nnpart(s) nnof nnthe nnengine nnchanges nnrotary nnmotion nnto nnreciprocating nnmotion nnwhich nnenables nnthe
nnvalves nnto nnbe nnopened? nn- nncorrect nnanswer-The nncamshaft
An nnengine nncamshaft nnis nntimed nnto nnthe nncrankshaft nnso nnthat nnthe nnvalves nnopen nnand nnclose nnin nnrelation
nnto: nn- nncorrect nnanswer-Piston nnposition
, The nnflywheel nnhelps nnto nnkeep nnthe nncrankshaft nnturning nnbetween nn_________ nnstrokes. nn- nncorrect
nnanswer-Power
The nncrankshaft nnof nnan nnengine nnchanges nnreciprocating nnmotion nnto nnrotary nnmotion nn- nncorrect nnanswer-
True
When nnfuel nnexplodes nnin nna nncylinder, nnwhat nnmovable nnpart nnof nnthe nnengine nnfirst nnreceives nnthe nnforce?
nn- nncorrect nnanswer-Piston
How nnmany nnrevolutions nnof nnthe nncrankshaft nnare nnnecessary nnto nncomplete nnthe nnfour-stroke nncycle? nn-
nncorrect nnanswer-2
Which nnof nnthe nnfollowing nnbearings nnsupport nnthe nncrankshaft nnof nnan nnengine? nn- nncorrect nnanswer-Main
Compression nnrings nninstalled nnon nnthe nnpistons nnare nndesigned nnto nn- nncorrect nnanswer-Seal nnthe
nncombustion nnchamber
A nnrotating nnforce nnis nncalled nn- nncorrect nnanswer-Torque
The nnspeed nnof nnthe nnengine nnis nnmeasured nnin nn- nncorrect nnanswer-Revolutions nnper nnminute
What nnpart nnof nnthe nnengine nncloses nnthe nnvalves? nn- nncorrect nnanswer-Valve nnspring
What nnpart nnshould nnbe nnremoved nnto nntest nncylinder nncompression nnon nna nndiesel nnengine? nn- nncorrect
nnanswer-Either nnA nnor nnC nn(injector nn& nnglow nnplug)
What nnis nnused nnto nnignite nnthe nnair-fuel nnmixture nnin nna nndiesel nnengine? nn- nncorrect nnanswer-Heat
Coolant nnis nnwater nnand nn- nncorrect nnanswer-Ethylene nnglycol
